Half-length photographic portrait of William Crookes taken in 1856, when sitter was 24 years old.

Plate from the biography of Sir William Crookes, a British chemist and physicist known for his work on spectroscopy. He…

Half-length photographic portrait of William Crookes seated next to a table containing a scientific instrument. Taken at age 18 when Crookes was August Wilhelm von Hofmann's assistant.

Plate from the biography of Sir…

Notebook containing dyed yarn samples and corresponding handwritten dye recipes.

The fifth edition of a work on dyeing and printing with aniline dyes on fabric, cotton, and silk. Contains 84 colored fabric samples. Only dye samples have been digitized.

Third edition volume of Spectrum Analysis by Henry Enfield Roscoe (1833-1915) with numerous engravings and colored plates. Roscoe has included a series of six lectures on the subject of spectrum analysis with…

Man viewing candle light through a prism. Illustration for section 16. Refraction of Monochromatic Light by a Prism.

An illustration of a solar eclipse during the last 2 minutes, 25 seconds, therefore just before the reappearance of the sun's rays. The accompanying text states: ""Scarcely had the last ray of sunlight disappeared,"…

Prints from photographs taken by Colonel James Francis Tennant (1829-1915). The upper picture shows the eclipse at the moment of totality, and the lower one immediately before it's cessation. Observed from Guntoor,…

This plate contains two prints from photographs of a solar eclipse viewed in Burlington, Iowa on August 7, 1869.
"The photographic plates, which were exposed for the brief space of from five to sixteen seconds, give…

Illustration of a man looking through a spectroscope.
From the corresponding text: "Fig. 52, especially the three tubes directed to the prism at different angles, as in that constructed by Kirchhoff and Bunsen. The…

Here Schellen is illustrating and explaining the phenomenon of sunspots. The accompanying text states: "In Fig. 106 the drawings marked I represent the varying phases through which a spot surrounded by a penumbra…

Translated from the second enlarged and revised German edition by Jane and Caroline Lassell; edited with notes by William Huggins; with numerous woodcuts and colored plates.

From the Preface: "Its object is, on the one…

This plate illustrates four spectra from solar phenomena.
Spectrum 1 is Solar Spectrum and Spectrum of the Prominences, during a total Eclipse.
Spectrum 2 is Spectrum of the Corona. Observed by Charles Young…

Prominences represented in their natural colors, as seen through a large telescope when the slit of the spectroscope was open wide and directed on to the red C-line. These prominences are characteristic of the an…

Prominences represented in their natural colors, as seen through a large telescope when the slit of the spectroscope was open wide and directed on to the red C-line. These prominences are characteristic of the a…

Lorenzo Respighi (1824-1889) was the director of the University Observatory at the Campidoglio at Rome. Starting in October of 1869 he observed daily the entire limb of the sun recording prominences and other phenomena.…

Plate from the publication Spectrum Analysis Explained, Including an Explanation of the Received Theory of Sound, Heat, Light, and Color by Dana Estes (1840-1909). The plate depicts Solar prominences as observed by…

An illustration of a man using Lockyer's telespectroscope. Sir Joseph Norman Lockyer (1836-1920), designed this instrument in order to observe the spectra of the prominences in full sunlight. Lockyer is best known for…

Chromolithograph of a table of spectra in full color.

From a photograph taken of a solar eclipse observed from Syracuse, Sicily on 22 December 1870.
From text: "The photograph taken by Mr. Brothers is very valuable, since it shows the halo extending towards the…

Frontispiece illustration contains three figures. Figure six is entitled "Spectrum showing the absorptive power of Sodium vapor," which is a spectrum of sodium. Replicating Sir Isaac Newton's (1642-1727) discovery,…

Frederick Crace Calvert (1819–1873) was a professor of chemistry at the Royal Institution, Manchester. From 1835 to 1846 he lived in France, studying chemistry under the chemist Michel Eugène Chevreul (1786-1889), who…

Cardboard box which at one time contained two dozen, wooden dye containers sealed with paper labels. Each contained an indigo fabric dye puck.

Indigo is among the oldest dyes to be used for textile dyeing and printing.…

The third edition of a work on dyeing and printing with aniline dyes on fabric, cotton, and silk. Contains 88 colored fabric samples. Only dye samples have been digitized.